It may not feel like it yet, but summer is starting to wind down - and as we look forward to the start of the school year we're showcasing six of our favorite green campuses. High-tech, low-tech or somewhere in-between, these six schools are all beautiful and brilliant designs that foster smarter students while leaving a much smaller impact on the planet they will inherit.

This magnificent school campus in Bali is made entirely from sustainably harvested bamboo. Architecture firm PT Bambu developed the rich environment, which consists of four classrooms, housing, offices, cafes, a gym, and the Heart of the School, a spiraling, multi-story building. The school also runs on clean energy systems like solar power, a biomass boiler, and a micro-hydro generator. Of course, sustainability is a core element of the children’s education.

Modular thinking has gone high-tech with Project FROG‘s Zero Energy Classroom, which is a meticulously designed kit that allows a school to get up and running in as short a time as possible. The design’s success is not just due to its speedy installation however — the carefully concieved space is flooded with indirect daylight and is precisely engineered to provide plenty of clean air. The buildings are also designed to exceed energy code by 25%, keeping the school’s budget intact. With the installation of optional solar arrays, the buildings can be zero energy.